Home / 84,004.05-115,921.20-52,172.28

Finding the Fourth Proportional to 84,004.05, 115,921.20 and 52,172.28

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Solution

The fourth proportional to 84,004.05, 115,921.20 and 52,172.28 is: 71,995.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,004.05 : 115,921.20 = 52,172.28 : x
  2. Step 2: Convert to fraction form
    84,004.05/115,921.20 = 52,172.28/x
  3. Step 3: Cross multiply
    84,004.05x = 115,921.20 × 52,172.28
  4. Step 4: Simplify right side
    84,004.05x = 6,047,873,304.34
  5. Step 5: Solve for x
    x = 6,047,873,304.34/84,004.05
  6. Step 6: Final answer
    x = 71,995.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.